Patents by Inventor Akiro Iso

Akiro Iso has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Perpendicular magnetic recording medium and method of manufacturing the same
    Publication number: 20060014051
    Abstract: A perpendicular magnetic recording medium and a method of manufacturing the same include a nonmagnetic substrate, a nonmagnetic underlayer, and a magnetic layer disposed directly on the nonmagnetic underlayer. The magnetic layer is composed of ferromagnetic crystal grains having a hexagonal close-packed structure and nonmagnetic grain boundaries composed of oxide or nitride surrounding each of the ferromagnetic crystal grains. The surface energy of the nonmagnetic underlayer is made to be at least 70 mN/m. The nonmagnetic underlayer can be composed of a metal selected from rhenium, ruthenium, and osmium, or an alloy containing at least an element selected from rhenium, ruthenium, and osmium, and can have a thickness of 30 nm or less.
    Type: Application
    Filed: June 16, 2005
    Publication date: January 19, 2006
    Applicant: Fuji Electric Device Technology Co., Ltd.
    Inventors: Akiro Iso, Hiroyuki Uwazumi
  • Semiconductor device
    Patent number: D710317
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: August 5, 2014
    Assignee: Fuji Electric Co., Inc.
    Inventors: Shuangching Chen, Akiro Iso, Takashi Hyakutake, Syougo Ogawa, Syuuji Miyashita